Finding the Third Proportional to 1,305.18 and 2,720.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,305.18 : 2,720.46 = 2,720.46 : x
2. Step 2: Convert to fraction form
   1,305.18/2,720.46 = 2,720.46/x
3. Step 3: Cross multiply
   1,305.18x = 2,720.46 × 2,720.46
4. Step 4: Simplify right side
   1,305.18x = 7,400,907.71
5. Step 5: Solve for x
   x = 7,400,907.71/1,305.18
6. Step 6: Final answer
   x = 5,670.43